Field distribution in stator core end packages of hydropower generators

by William Johnsson

Institution: Uppsala University
Year: 2016
Keywords: Engineering and Technology; Electrical Engineering, Electronic Engineering, Information Engineering; Other Electrical Engineering, Electronic Engineering, Information Engineering; Teknik och teknologier; Elektroteknik och elektronik; Annan elektroteknik och elektronik; Engineering and Technology; Teknik och teknologier; Master Programme in Electrical Engineering; Civilingenj├Ârsprogrammet i elektroteknik
Posted: 02/05/2017
Record ID: 2076899
Full text PDF: http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-278687


Hydropower has during the last century been known for its high reliability and efficiency. To refine and develop the technology has kept engineers and researchers busy during most of the 20th century and is still a subject of interest. With a lot of different companies involved, widely spread around the world, different design characteristics exists. A matter where opinions of designers and engineers can differ is what design action to use for reduction of the end heating, caused by the axial magnetic flux. In this thesis the two most common design actions, stepping of the stator core end and reduction of the rotor magnetic length are investigated. The results shows that both of the design features provides a significant effect of about the same reduction.